Test 29A - Wiper Switch Power Supply
NOTE:
For connector terminal identification, see CONNECTOR IDENTIFICATION
. For wiring diagrams, see WIRING DIAGRAMS
. Perform TEST VER-1 after each repair.
- Remove and inspect fuse No. 10 in junction block. See Figure . Junction block is located behind end cover, on left side of instrument panel. If fuse is blown, go to TEST 30A. If fuse is not blown, go to next step.
- Using DRB in voltmeter mode, check voltage on fuse No. 10 (Black/White wire). If voltage is more than 10 volts, repair open Black/White wire between fuse and relay. If voltage is less than 10 volts, go to next step.
- Disconnect ignition switch connector. Connector is located on upper part of steering column, behind trim cover. See Figure . Using DRB in voltmeter mode, check voltage on ignition switch connector terminal No. 9 (Red wire). If voltage is less than 10 volts, repair open Red wire. If voltage is more than 10 volts, go to next step.
- Using an external ohmmeter, check resistance of Black/White wire between fuse No. 10 and ignition switch connector terminal No. 2. If resistance is more than 5 ohms, repair open Black/White wire between fuse and ignition switch. If resistance is less than 5 ohms, replace ignition switch.